cpython/Include/fileobject.h

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/* File object interface */
#ifndef Py_FILEOBJECT_H
#define Py_FILEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
PyObject_HEAD
FILE *f_fp;
PyObject *f_name;
PyObject *f_mode;
int (*f_close)(FILE *);
int f_softspace; /* Flag used by 'print' command */
int f_binary; /* Flag which indicates whether the file is
open in binary (1) or text (0) mode */
char* f_buf; /* Allocated readahead buffer */
char* f_bufend; /* Points after last occupied position */
char* f_bufptr; /* Current buffer position */
char *f_setbuf; /* Buffer for setbuf(3) and setvbuf(3) */
int f_univ_newline; /* Handle any newline convention */
int f_newlinetypes; /* Types of newlines seen */
int f_skipnextlf; /* Skip next \n */
PyObject *f_encoding;
PyObject *f_errors;
PyObject *weakreflist; /* List of weak references */
int unlocked_count; /* Num. currently running sections of code
using f_fp with the GIL released. */
int readable;
int writable;
} PyFileObject;
PyAPI_DATA(PyTypeObject) PyFile_Type;
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#define PyFile_Check(op) PyObject_TypeCheck(op, &PyFile_Type)
#define PyFile_CheckExact(op) (Py_TYPE(op) == &PyFile_Type)
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PyAPI_FUNC(PyObject *) PyFile_FromString(char *, char *);
PyAPI_FUNC(void) PyFile_SetBufSize(PyObject *, int);
PyAPI_FUNC(int) PyFile_SetEncoding(PyObject *, const char *);
PyAPI_FUNC(int) PyFile_SetEncodingAndErrors(PyObject *, const char *, char *errors);
PyAPI_FUNC(PyObject *) PyFile_FromFile(FILE *, char *, char *,
int (*)(FILE *));
PyAPI_FUNC(FILE *) PyFile_AsFile(PyObject *);
PyAPI_FUNC(void) PyFile_IncUseCount(PyFileObject *);
PyAPI_FUNC(void) PyFile_DecUseCount(PyFileObject *);
PyAPI_FUNC(PyObject *) PyFile_Name(PyObject *);
PyAPI_FUNC(PyObject *) PyFile_GetLine(PyObject *, int);
PyAPI_FUNC(int) PyFile_WriteObject(PyObject *, PyObject *, int);
PyAPI_FUNC(int) PyFile_SoftSpace(PyObject *, int);
PyAPI_FUNC(int) PyFile_WriteString(const char *, PyObject *);
PyAPI_FUNC(int) PyObject_AsFileDescriptor(PyObject *);
/* The default encoding used by the platform file system APIs
If non-NULL, this is different than the default encoding for strings
*/
PyAPI_DATA(const char *) Py_FileSystemDefaultEncoding;
/* Routines to replace fread() and fgets() which accept any of \r, \n
or \r\n as line terminators.
*/
#define PY_STDIOTEXTMODE "b"
char *Py_UniversalNewlineFgets(char *, int, FILE*, PyObject *);
size_t Py_UniversalNewlineFread(char *, size_t, FILE *, PyObject *);
/* A routine to do sanity checking on the file mode string. returns
non-zero on if an exception occurred
*/
int _PyFile_SanitizeMode(char *mode);
#if defined _MSC_VER && _MSC_VER >= 1400
/* A routine to check if a file descriptor is valid on Windows. Returns 0
* and sets errno to EBADF if it isn't. This is to avoid Assertions
* from various functions in the Windows CRT beginning with
* Visual Studio 2005
*/
int _PyVerify_fd(int fd);
#elif defined _MSC_VER && _MSC_VER >= 1200
/* fdopen doesn't set errno EBADF and crashes for large fd on debug build */
#define _PyVerify_fd(fd) (_get_osfhandle(fd) >= 0)
#else
#define _PyVerify_fd(A) (1) /* dummy */
#endif
#ifdef HAVE_SELECT
/* A routine to check if a file descriptor can be select()-ed. */
#ifdef Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
#define _PyIsSelectable_fd(FD) (1)
#else
#define _PyIsSelectable_fd(FD) (((FD) >= 0) && ((FD) < FD_SETSIZE))
#endif
#endif /* HAVE_SELECT */
#ifdef __cplusplus
}
#endif
#endif /* !Py_FILEOBJECT_H */